Waste-collecting system for



March 13, 1945. w, s A 2,371,321

I WASTE-COLLECTINGSYS TEM FOR ROTARY CUTTERS Original Filed Aug. 27,1941 2 Sheets-Sheet 1 9' fizz/en [or Ernest W. Stacey A orney March 13,1945. E. w. STACEY WASTE-COLLECTING SYSTEM FOR ROTARY CUTTERS OriginalFiled Aug. 27, 1941 2 Sheets-Sheet 2 Inventor Erne st W Stacey PatentedMar. 13, 1945 WASTEeCOLLECTING SYSTEM FOR ROTARY CUTTERS Ernest W. 7Stacey, Beverly, Mass, assignor to United Shoe Machinery Corporation,Flemington, N. J a corporation of New Jersey Original application August27,1941, Serial No.

Divided and this application Septemher 4, 1943, Serial No. 5013758.Clairns. (01 12 1) This invention relates to means whereby the chipsand other waste from a rotary cutter, as, for example, those employedfor rounding or forming to a pattern the soles of shoes, are collectedand removed from the vicinity of the cutter. It is of particular utilityin connection with such a sole-rounding machine as that disclosed in theapplication for Letters Patent filed in my name inthe United StatesPatent Office on August 27. 1941, and bearing'the Serial No. 408,468. Ofthat case, the present application is a division.

In machines of the character above mentioned. to carry the work througha path which offers an approximation of the form to be imparted to it bya rotary cutter, said work, as asole-blank or a stack of such blanks, isgiven a compound movement of oscillation and rotation. The blank thushas a movement of translation which shifts it through a considerabledistance, and it is so turned that thevarying angle at which it ispresented to the cutter causes the chips produced to be thrown off indifferent directions. This makes it difficult to so associate with thework efficient waste-collecting means which will not interfere with themovement; and also to provide such means which will fully retain thedifferently projected particles. My invention has as an object theprovision of a system which will properly dispose'of the waste producedby the cutter 'in all positions of the work, and which will still permitthe free travel of said work past the cutter. To this end; I combinewith an oscillatory and rotary work-holder, as one for shoe-soles, and arotary cutter to which the holder presents the work, an

exhaust-conduit into the mouth of which said work is movable as itreceives the action of the cutter. The chips and dust thrown off by thecutter are thus subjected directly to the force of the exhaust, butwithout interference with the movement of the work, because of lateraleX- pansion of the conduit-mouth. A bafiie preferably assists in theretention. of the waste, it being furnished by a wall which divides fromthe main exhaust-conduit an auxiliary conduit, through which is removedmaterial which may pass the baifie. The collection of the waste may,therefore, be practically complete.

A particular embodiment of the invention is illustrated in theaccompanying drawings, in

which Fig. 1 is a partial vertical section, taken in a plane from frontto rear of a sole-rounding machine in which my improved collectingsystem is included, this section passing through the forismounted tooscillate a carrier-arm '32, in the ter 36.

the post 30.

ward portion of the cutter-carrying arm and be; ing viewed from theright of the machine;

Fig. 2 is a broken side elevation, also taken from the right andespecially showing the mountingof the exhaust-conduit; and

Fig. 3 is an enlarged horizontal section on the line IIIIII of Fig. 2,and including the entire exhaust-conduit.

In the sole-rounding machine of the previously mentioned application,there is a frame IU,-upon which, about a vertical tubular shaft l2, aworkcarrier I4 is mounted to oscillate under the 'infiuence of gearing Aand connected mechanism B. Rotatable in lower and upper arms l6 and H3,respectively, of the carrier 14 are vertical shafts 2D and '22. Theshaft 20 is driven through the gearing A, and has mounted upon its upperextremity a pattern 24. The'shaft 22 carries at its lower extremity aclamp 25, driven from the gear ing A through the shaft l2 and gearing Cin synchronism with the pattern. Through a rod 26 within the shaft l2and through an inter mediate lever 28, the claim) may be lowered orraised to secure or free for removal one or more sole-blanks S, or otherwork-pieces. The compound movement of oscillation and rotation of theclamped work is of such a character, that any point at the periphery ofthe blank is'moved through a path which roughly corresponds to thecontour of the pattern 24.

Rising from the frame H], at the right workcarrier I4, is a tubular post30, about which outer end of which a vertical shaft 34 is rotatable, ithaving fixed upon it a toothed rounding out- The shaft and cutter areconstantly driven during the operation of the through gearing D from ashaft 38 rising through The carrier-arm may be oscillated about the postto shift the cutter between the inactive position of Fig. 1, whichpermits the application to and removal from the pattern 24 and clamp 25of the work, and the active position of 3, in which the rounding of thework may take place. This is effected under the control of the operatorby mechanism indicated at E. This mechanism is joined to the carrier-armby a link 40. The approach of the cutter to the work and'the precisecontour which it imparts thereto are determined by contact with theperiphery of the pattern 24 of a gage-roll 42 mounted upon I thecarrier-arm.

In the action of the cutter'upon the work, a considerable quantity ofchips and dust are produced, which must be disposed of. For this purofthe machine system. The mouth 46 extends from a side wall 56 of theconduit, close to which the cutter 36 is carried, to the oppositeshorter side wall 58 curved inwardly and rearwardly to the passage 41.The width of the mouth is such thatinall positionsoi.

the oscillating and turning pattern, clamp and? work-pieces, these maymove across and into the conduit without interference. Yet for thevaried angles at which the work is presented to the cutter, the wasteremovedfrom'the blankis pro- .iected directly into the conduit,remaining under the full influence of. the. exhaust.

lithe conduit-wall 56- extendsas. close to. the cutter 36 at 51 and-asfar forward as possible, while .remainingfree'from contact with'theturning: work, to retain'the waste carried by said cut fier in thedirection of its rotation. Further, to. preventthe waste from escapingpast the wallportion 51-, there extends alongthe wall SB an ihner. wall60. joined to. the upper and lower walls 44. and. forming an auxiliaryexhaust-passage B2. joining, the. inner passage 4-1 at. The outer. endof the wall 60, at. 66, lies-.in-close proximity. totheperiphery of.theecutter, which turns from the work inwardly toward it; Consequently,this wall' servesas a..bafiie;.-theagreater. part of the waste thrown:inthis-direction comingyin contact.

with it. andbeing retained within the; main pas-- 53%6'343430be.-.disposed of. through thepassage 41. Whatever passes the biaflle;comes under: the; in-= fiuence f theexhaustthrcugh the narrow auxiliarypassage, intowhichthe air is drawn at azhigh velocity. This.material'is, therefore, disposed. of through'the passages 62: and 54,together. with the greater portion of: the waste received throug'hthemain passage.

Having described-my invention, what-I claimaas' new'anddesire: to.secure by Letters Patent of the United States is:

1. In combination, an oscillatory. and. rotary worbholder, .a rotatablecutter to which the hold er presents the work; and an exhaust-conduitinto sole-holder enters-and across which it moves, and

a cutter-rotatablein the conduit to act upon a sole in the holder.

4.. In.combination,. an exhaust-conduit having a wall dividing: it. intoa main exhaust-passage and-an auxiliary exhaust-passage, a work-holdermovable in the mouth of the conduit, and a. cutter to whichthe holderpresents the work, said outten being. situated. with. its periphery. in.close proximity totheend ofthedividing'wallp 5.. In combination,. anexhausteconduit having, a. wall. dividing-it into a. mainexhaust-passage. and: an auxiliary. exhaustepassage, awork-holdermovable inthe mouth of the-conduihandhhutter. rotatablewithin. theconduit and to which. theholder presents .thework, theoperating.periphery. at said cutter turning, from. the workintosther conduitandtoward-theend ofthe: dividing wall. 6. Incombinatiomta; carrier..i'nwhich are two. exhaust-passages. a. dividing wall between thepassages..furnishing. a: name, a cutter. rotatable upon the carrier at.the outer end of; the. bailla, aznd a'movabl'e work-holderco-operatingwiththe cutter... ,Incombination, a carrier furnishingamain, exhaustepassage: havingalaterally expanded. mouthandanauxillary.exhaust-passageacutter:

1 rotatable upon the carrier between. the openings of themain and;auxiliary passages, anda works-- holder co-operating with the cutterand, movable: in the mouth of; the main. passage.

8: In: a sole-rounding.machine,-an oscillatory carrier-aim furnishing: amain, exhaust-passage having-alaterally,- expanded mouth-and anauxiliary passage, a cutter'rotatable uponthe 03111 163. arm, .a bafliebetweenethe passages acting. to retain. waste produced: .by thecutterin, the main-.passage, and. an oscillatory and rotary sole-holdermovableinthe mouthof thezmain passage. I

ERNEST. W. STACEY.

